close friend, bosom buddy / crony, chum

交わす: exchange; intersect / 躱す: dodge, evade

川洲: sandbank in a river

膠す: stay as if stuck to glue

川島: a surname / 川嶋: a surname

川崎: A place name, such as that of Kawasaki city in Kanagawa prefecture. / 川崎, 河崎, 川嵜: a surname

exchange / convert / dui (one of the trigrams of the I Ching: swamp, west)

Kawasaki (a major city in Kanagawa Prefecture, Japan) / Kawasaki, Japanese motorcycle manufacturer. / a surname

downstream / lower part of a river

exchange (messages, greetings, etc.) / to do with each other (promise, handshake, etc.) / cross, intersect